豫西重力滑动构造顶板水害及评价模型

Roof water damage and evaluation model of gravity sliding structure in western Henan Province

重力滑动构造是一种特殊的地质构造,该构造的发育会导致层位缺失、岩体破碎、次生构造发育,在该种构造发育的矿区内开采时易诱发灾害,特别是在顶板存在滑动构造的矿井内常有顶板水害发生,给矿井带来了安全威胁。由于该构造对原始岩层形成严重破坏,性质发生改变,使得许多常用的评估矿区富水、导水的参数难以适用。利用研究矿区内的勘探钻孔所取得的多组参数拟合出含水层富水性系数,来评估该矿区各位置的富水程度,应用"三图双预测法"对研究矿区的突水危险性进行了分区,并在实践中利用其分区制定相应的技术措施,保障了安全生产。

Gravity sliding structure is a special geological structure.The development of this structure will lead to the loss of stratum,rock fragmentation and secondary structure development.It is easy to induce disasters when mining in the mining area with this kind of structure development,especially in the mine where the roof has a sliding structure,which often causes roof water damage,which brings safety threats to the mine.Due to the serious damage to the original rock formation and the change of properties,many commonly used parameters for evaluating water-rich and water-conducting are difficult to apply.In this paper,the water rich coefficient of aquifers is fitted by a number of parameters obtained in the exploration drilling in the mining area,to evaluate the water rich degree of each position in the mining area and to apply it.The danger of water inrush in mining area is zoned by using the method of "three maps and two predictions".In practice,the zoning is used to formulate corresponding technical measures to ensure safe production.